I like it, good suggestion.
I play the old travian v1.0 , was a constantly war between every one. This Travian Kingdom have more diplomacy, and I like it.
Some kingdom have the king as the boss (power is power)
Some kingdom act like a republic (duke and king plan)
Some kingdom are more democracy (every one have a voice)
The three type can be playing in the Travian Kingdom. I see the game as a Country, like another earth.
*Sorry I going to far.
It complicate a little, the game update once or twice per mouth, so it difficult to let all the information in the wikia.
As far I know the system work in this way
The king can have as many treasury active his wish, just follow some rules
(1) He can activate every 4000 treasures one village
(2) Another restriction is the village number, which follows the following formula. (V = village a = number of active treasures maximum)
A = n / 2 + 1
You can have half plus one of active treasures.
Can only have one treasury active and the max duke is 7